ASTROSAT CZTI

Data Quality Report

Orbit 17213

Creation date: 2024-06-27T17:33:40.103786
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A05_185T04_9000002548_17213cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17213cztM0_level2_quad_clean.evt
Size (bytes)535,305,60099,267,840
Size510.5 MB 94.7 MB
Events in quadrant A3,532,024638,037
Events in quadrant B3,821,271636,820
Events in quadrant C4,038,736605,817
Events in quadrant D4,305,648598,710

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156262
B0163952
C0168262
D0181082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7572210.277338%
B7573851.122409%
C75731111.465734%
D75731391.835468%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 9372 7574 0 0 0.00% 0.00%
B 9373 7575 8 8 0.09% 0.11%
C 9373 7575 2 2 0.02% 0.03%
D 9373 7575 82 82 0.87% 1.08%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 12 189 12778 63.86 913 894 186.1
A 0 226 7992 38.14 913 894 186.1
A 3 137 6645 30.9 913 894 186.1
B 7 220 110668 626.49 912 888 175.2
B 15 35 31459 174.46 912 888 175.2
B 12 111 20409 111.4 912 888 175.2
C 3 233 469018 2275.3 877 881 205.7
C 14 238 133405 644.11 877 881 205.7
C 13 61 6151 25.61 877 881 205.7
D 5 222 465230 2129.64 887 860 218.1
D 13 189 266494 1218.22 887 860 218.1
D 12 233 70173 317.87 887 860 218.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter